<div class="form-group">
    <label class="control-label col-xs-2">
        单次最多购买
    </label>
    <div class="col-xs-9">
        <input type="number" class="form-control" maxlength="11" name="maxbuy" placeholder="用户单次购买此商品数量限制,0或留空不限制" >
    </div>
</div>

<div class="form-group">
    <label class="control-label col-xs-2">
        单次最低购买
    </label>
    <div class="col-xs-9">
        <input type="number" class="form-control" maxlength="11" name="minbuy" placeholder="用户单次必须最少购买此商品数量限制，0或留空不限制" >
    </div>
</div>

<div class="form-group">
    <label class="control-label col-xs-2">
        最多购买
    </label>
    <div class="col-xs-9">
        <input type="number" class="form-control" maxlength="11" name="allbuy" placeholder="用户购买过的此商品数量限制，0或留空不限制" >
    </div>
</div>